Test on test.bbb.org

[Leandro De Mestico]

Hi!,

Can I run a test on https://test.bigbluebutton.org/ tomorrow with about 160-200 users (bots)?

Thanks!

_________________________________________________________________________________

________________________________Leandro De Mestico Fefer_____________________________

Contacto: leandro....@redtecnologica.org

Tel. 54 11 3916 4438

Horario de contacto: 11-17hs, emergencias 8-23hs (Tel.)

      Dpto. Sistemas e Infraestructura

_________________________________________________________________________________

[Fred Dixon]

Hi Leandro,

We would recommend using bbb-install.sh to install BigBlueButton on a Digital Ocean droplet (they will give you a single IP address) and install the latest build of BigBlueButton 2.2-dev (check your e-mail).

Try that and let us know the results.  That would be a bit safer than using https://test.bigbluebutton.org/ at the moment.

Regards,... Fred

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@bigbluebutton

[Leandro De Mestico]

Sorry, about the delay, I could't finish testing until today (summer vacation period in the south, too much work), I finally could get 250 bots from a lot of VPSs. I have the raw data from consumption that I will add here “cooked” tomorrow, but I have a question:

Drawing lagged a Lot the presenter session, when I put 2 users drawing, was almost impossible (with multi drawing option), and I notice a high bandwidth consumption from the presenter computer side. Does the drawing info pass through the server before been sent to every user at the meeting? What about webcam and desktop sharing?

Test: between DO and Vultr machines, 250 stable users were reached. Was added 1 presenter in Windows, firefox and another in Android, Chrome. Always someone with mic working. Server was a Vultr Bare Metal.

_________________________________________________________________________________

________________________________Leandro De Mestico Fefer_____________________________

Contacto: leandro....@redtecnologica.org

Tel. 54 11 3916 4438

Horario de contacto: 11-17hs, emergencias 8-23hs (Tel.)

      Dpto. Sistemas e Infraestructura

_________________________________________________________________________________

[Anatoliy Vinogradov]

What are the server parameters (processor, RAM) and which Internet channel is connected to the server?

вторник, 26 февраля 2019 г., 23:54:22 UTC+2 пользователь Leandro De Mestico написал:

[Leandro De Mestico]

Test: between DO and Vultr machines, 250 stable users were reached. Was added 1 presenter in Windows, firefox and another in Android, Chrome. Always someone with mic and recording working.  Server was a Vultr Bare Metal.

Server: 32GB | 8CPU |  BW: Download: 4985.20 Mbit/s Upload: 1692.83 Mbit/s

<18:02 join 150 without activity

up to:

_____________________________

BW:

Average:        IFACE   rxpck/s   txpck/s    rxkB/s    txkB/s   rxcmp/s   txcmp/s  rxmcst/s   %ifutil
Average:           lo   2728.33   2728.33        982.90    982.90      0.00      0.00      0.00      0.00
Average:       enp1s0   1142.17   2192.00    88.18   1625.46      0.00      0.00      0.50      0.13
Tue Feb 26 17:58:02 UTC 2019

_____________________________

CPU:

                   CPU     %user     %nice   %system   %iowait    %steal     %idle
Average:        all      8.06      0.04      1.38      0.04      0.00     90.48
Tue Feb 26 17:57:54 UTC 2019

_____________________________

MEM:

              total              used        free      shared  buff/cache   available
Mem:          31998        3687       19562         273        8748       27583
Tue Feb 26 17:59:00 UTC 2019

_____________________________

18:02 - 18:05 join 100 more (up to 250): High values when users were join

_____________________________

Average:        IFACE   rxpck/s   txpck/s    rxkB/s    txkB/s   rxcmp/s   txcmp/s  rxmcst/s   %ifutil
Average:           lo        4633.83   4633.83    927.63    927.63      0.00      0.00      0.00      0.00
Average:       enp1s0   1988.00   2794.00    149.12   1463.71      0.00      0.00      0.50      0.12
Tue Feb 26 18:04:02 UTC 2019
_____________________________

_____________________________
                CPU     %user     %nice   %system   %iowait    %steal     %idle
Average:        all      6.33      0.02      1.73      0.02      0.00     91.90
Tue Feb 26 18:03:54 UTC 2019
_____________________________

_____________________________
              total        used        free      shared  buff/cache   available
Mem:          31998        4028       19176         281        8793       27234
Tue Feb 26 18:04:00 UTC 2019
_____________________________

18:07 1 Preseter wrote: usable but too writing was too lagged. Load avarage >2 (hight virt mem usage, didn't capture this value :( )

_____________________________
Average:        IFACE   rxpck/s   txpck/s    rxkB/s    txkB/s   rxcmp/s   txcmp/s  rxmcst/s   %ifutil
Average:           lo   2571.83   2571.83    277.51    277.51      0.00      0.00      0.00      0.00
Average:       enp1s0   1118.00   1173.17     80.66    212.34      0.00      0.00      0.50      0.02
Tue Feb 26 18:07:38 UTC 2019
_____________________________

_____________________________
                CPU     %user     %nice   %system   %iowait    %steal     %idle
Average:        all      6.24      2.20      1.12      0.00      0.00     90.43
Tue Feb 26 18:08:43 UTC 2019
_____________________________

_____________________________
              total        used        free      shared  buff/cache   available
Mem:          31998        4317       18862         281        8818       26945
Tue Feb 26 18:08:00 UTC 2019
_____________________________

18:08 two speak: No big changes

18:09 two users drawing  (with multi board): almost imposible to write.

_____________________________
              total        used        free      shared  buff/cache   available
Mem:          31998        4350       18820         281        8827       26912
Tue Feb 26 18:09:30 UTC 2019
_____________________________

_____________________________
Average:        IFACE   rxpck/s   txpck/s    rxkB/s    txkB/s   rxcmp/s   txcmp/s  rxmcst/s   %ifutil
Average:           lo   1932.83   1932.83    146.90    146.90      0.00      0.00      0.00      0.00
Average:       enp1s0    876.67    937.17     64.58    126.95      0.00      0.00      0.67      0.01
Tue Feb 26 18:09:26 UTC 2019
_____________________________

_____________________________
                CPU     %user     %nice   %system   %iowait    %steal     %idle
Average:        all      6.24      2.20      1.12      0.00      0.00     90.43
Tue Feb 26 18:09:43 UTC 2019
_____________________________

18:10. 1 webcam + a screen is shared: experience little difference lLittle difference compared to less than 10 viewers, but load avarage > 5, high virt

_____________________________
Average:        IFACE   rxpck/s   txpck/s    rxkB/s    txkB/s   rxcmp/s   txcmp/s  rxmcst/s   %ifutil
Average:           lo   4087.00   4087.00    590.75    590.75      0.00      0.00      0.00      0.00
Average:       enp1s0   1965.50   5321.00    272.12   3901.31      0.00      0.00      0.67      0.32
Tue Feb 26 18:12:26 UTC 2019
_____________________________

_____________________________
                CPU     %user     %nice   %system   %iowait    %steal     %idle
Average:        all     28.50      1.53      8.17      0.00      0.00     61.80
Tue Feb 26 18:13:31 UTC 2019
_____________________________

_____________________________
              total        used        free      shared  buff/cache   available
Mem:          31998        5057       18021         305        8920       26164
Tue Feb 26 18:13:30 UTC 2019
_____________________________

_________________________________________________________________________________

________________________________Leandro De Mestico Fefer_____________________________

Contacto: leandro....@redtecnologica.org

Tel. 54 11 3916 4438

Horario de contacto: 11-17hs, emergencias 8-23hs (Tel.)

      Dpto. Sistemas e Infraestructura

_________________________________________________________________________________

[Anatoliy Vinogradov]

Thanks for the details. Did you use this server? https://www.vultr.com/pricing/baremetal/ 

среда, 27 февраля 2019 г., 16:01:24 UTC+2 пользователь Leandro De Mestico написал:

[Leandro De Mestico]

Yes

_________________________________________________________________________________

________________________________Leandro De Mestico Fefer_____________________________

Contacto: leandro....@redtecnologica.org

Tel. 54 11 3916 4438

Horario de contacto: 11-17hs, emergencias 8-23hs (Tel.)

      Dpto. Sistemas e Infraestructura

_________________________________________________________________________________

[Leandro De Mestico]

I am about to make a second test with 2 rooms, should I watch another parameter? (I will catch presenter usage)

_________________________________________________________________________________

________________________________Leandro De Mestico Fefer_____________________________

Contacto: leandro....@redtecnologica.org

Tel. 54 11 3916 4438

Horario de contacto: 11-17hs, emergencias 8-23hs (Tel.)

      Dpto. Sistemas e Infraestructura

_________________________________________________________________________________

[Fred Dixon]

Hi Leandro,

A BigBlueButton server rarely runs out of memory if given 8G (if it does, it's an issue that we need to fix).  Assuming you have enough bandwidth, the key metric to watch is CPU usage.

Regards,... Fred

[Leandro De Mestico]

18 classrooms with ~= 30 viewers (540 total) worked fine with  1 microphone by classroom (18 T.), 2 drawing and 2 webcam or desktop (not at the same time). Load average was high but was very functional.

Can you tell me how the drawing is shared? Is any difference with sharing webcam or screen?

_________________________________________________________________________________

________________________________Leandro De Mestico Fefer_____________________________

Contacto: leandro....@redtecnologica.org

Tel. 54 11 3916 4438

Horario de contacto: 11-17hs, emergencias 8-23hs (Tel.)

      Dpto. Sistemas e Infraestructura

_________________________________________________________________________________

[Fred Dixon]

Hi Leandro,

> 18 classrooms with ~= 30 viewers (540 total) worked fine with  1 microphone by classroom (18 T.), 2 drawing and 2 webcam or desktop (not at the same time). Load average was high but was very functional. 

Thanks for sharing the results!

You can now setup your own BigBlueButton 2.2-beta server (which is what we are running on test.bigbluebutton.org).  See

  https://groups.google.com/d/msg/bigbluebutton-dev/34SphncjKEw/KJZsbQbEAQAJ

> Can you tell me how the drawing is shared? Is any difference with sharing webcam or screen?

The drawing on the whiteboard is sent to each client as events.  The amount of data sent is very small, where in contrast sharing a webcam can take 300 Kbits/sec and a screen (potentially) much larger bandwidth.

Regards,... Fred